DIO Reconstruction Failure Modes × RAG Pipeline

Application Mapping: DIO Reconstruction Failure Modes × RAG Pipeline

Status: derived application layer introduced in Reference Model v0.2.0 and included in v0.3.2.
Previous archived release: v0.3.1 — 10.5281/zenodo.23290683.
Boundary: not part of the canonical DIO/ODI Reference Vocabulary and not a normative redefinition of DIO, ODI, RAG, or the failure taxonomy.

Purpose

This mapping projects the current DIO Reconstruction Failure Mode taxonomy onto a generic retrieval-augmented generation pipeline. Its purpose is diagnostic: to show where RAG processing conditions can contribute to, expose, or amplify failures of digital-identity reconstruction.

A DIO failure mode is defined by the resulting reconstruction, not by the technical stage at which an upstream defect occurs. The relation between RAG stages and DIO failure modes is therefore many-to-many.

Generic RAG stages

Mapping

DIO failure mode	Typical RAG locus/loci	Possible mechanism	DIO interpretation
Entity Substitution	Query interpretation; entity linking; retrieval; synthesis	Evidence becomes anchored to a distinct but confusable referent.	The intended referent is reconstructed as another distinct referent.
Merge Failure	Indexing/entity linking; retrieval; context assembly; synthesis	Representations belonging to distinct referents are pooled under one working identity.	Distinct referents are reconstructed as a single referential identity.
Split Failure	Indexing/entity linking; retrieval; synthesis	Aliases, historical names, domains, identifiers, or legitimate transformations are treated as unrelated clusters.	Referential unity of one continuous entity is lost.
Entity Omission	Post-retrieval context use; generation; synthesis	Sufficient grounds are available to the effective observer, but the relevant entity reconstruction is not produced.	No relevant reconstruction is produced despite sufficient grounds within the observation domain; mere non-retrieval is outside this mode.
Semantic Fragmentation	Context assembly; synthesis	Compatible representations are treated as disconnected semantic fragments.	Referential unity remains while identity-preserving semantic coherence is lost.
Temporal Discontinuity	Indexing/version handling; retrieval; context assembly; synthesis	Successive legitimate states are not connected as transformations of the same referent.	Identity continuity across legitimate transformation is not preserved.
Temporal Misalignment	Retrieval; reranking; context assembly; synthesis	Older or otherwise temporally inappropriate representations dominate.	The referent is correct but the reconstructed state is temporally inappropriate.
Contextual Displacement	Query interpretation; reranking; context assembly; synthesis	A legitimate but contextually secondary identity aspect dominates the evidence relevant to the task.	A true reconstruction is contextually inadequate.

DIO failure mode

Typical RAG locus/loci

Possible mechanism

DIO interpretation

Entity Substitution

Query interpretation; entity linking; retrieval; synthesis

Evidence becomes anchored to a distinct but confusable referent.

The intended referent is reconstructed as another distinct referent.

Merge Failure

Indexing/entity linking; retrieval; context assembly; synthesis

Representations belonging to distinct referents are pooled under one working identity.

Distinct referents are reconstructed as a single referential identity.

Split Failure

Indexing/entity linking; retrieval; synthesis

Aliases, historical names, domains, identifiers, or legitimate transformations are treated as unrelated clusters.

Referential unity of one continuous entity is lost.

Entity Omission

Post-retrieval context use; generation; synthesis

Sufficient grounds are available to the effective observer, but the relevant entity reconstruction is not produced.

No relevant reconstruction is produced despite sufficient grounds within the observation domain; mere non-retrieval is outside this mode.

Semantic Fragmentation

Context assembly; synthesis

Compatible representations are treated as disconnected semantic fragments.

Referential unity remains while identity-preserving semantic coherence is lost.

Temporal Discontinuity

Indexing/version handling; retrieval; context assembly; synthesis

Successive legitimate states are not connected as transformations of the same referent.

Identity continuity across legitimate transformation is not preserved.

Temporal Misalignment

Retrieval; reranking; context assembly; synthesis

Older or otherwise temporally inappropriate representations dominate.

The referent is correct but the reconstructed state is temporally inappropriate.

Contextual Displacement

Query interpretation; reranking; context assembly; synthesis

A legitimate but contextually secondary identity aspect dominates the evidence relevant to the task.

A true reconstruction is contextually inadequate.

Related concepts outside the taxonomy

Semantic Vulnerability can be used as a robustness-oriented lens for asking how susceptible reconstruction is to perturbations in retrieval conditions, source availability, ranking, or context composition. Reconstruction Capture is relevant where a small subset of retrieved representations disproportionately dominates reconstruction. Identity Collapse remains a separate phenomenon-level concept.

Interpretation boundary

The mapping does not redefine DIO as a RAG framework, treat every RAG error as a DIO failure, assert one-to-one relations between pipeline stages and failure modes, or treat retrieval failure, hallucination, factual error, and source-quality problems as automatic synonyms for DIO concepts.

Source basis

The RAG stages and examples are generic analytical constructs, not claims of empirical validation.